Shoe-sole-tempering device.



N. C. BOHR, DECD.

H. B. EOHR, ADMINISTRATOR.

SHOE SQLE TEMPERING DEVICE.

APPLICATION FILED 050.13.1911.

Patented Oct. 26, 1915.

NICHOLAS C. BOHR, OF BOSTON, MASQAGHUSETTS;

HENRY BARB/AS BOHR ADMINIS- TRATOR 01" SAID NICHOLAS C. BOHR, DECEASED.

SHOE-SOLE-TEMPERING DEVICE.

Specification of Letters Fatent.

Patented Oct. 26, 1915.

Application filed December 13, 1911. Serial No. 665,550.

To all whom it may concern Be it known that I, NICHOLAS C. Bonn, a

citizen of the United States, residing atBos ton, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Shoe-Sole-Tempering Devices, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

The invention hereinafter described relates to devices for tempering shoe soles and has more particular reference to devices for treating the channel and between substance of insoles prior to the action of the Welter or other fastener inserting means which secures the upper, welt, and insole together.

Those skilled in the art are familiar with the usual practice of tempering or wetting the channel and between substance of in soles to render the leather suiliciently pliable for the passage therethrough of the Welter needle during the operation of stitching or sewing the upper, welt and insole of a welted shoe together. This tempering operation is preferably performed after the insole and upper have been assembled on the last, and has heretofore been done by means of brush, squirt can, or other device in the hands of the operative with the result that the channel and between substance have not been uniformly tempered, some parts being supplied with a surplus of the tempering liquid while other parts have not received enough or have been left entirely dry. Moreover, through haste or carelessness the upper has frequently been wet and injured by the tempering liquid as the implement used is moved to or from the shoe.

With these and other general considerations in mind, the aims and purposes of the present invention are to provide a device for tempering or moistening the channel and between substance of insoles, which shall be simple in construction, effective in operation, and whereby the parts treated may be readily and uniformly tempered without danger of wetting the upper of the shoe, all as will hereinafter more fully appear from the following description and accompanying drawings of one form of means for carrying the invention into practical effect, it being understood that in its true scope the invention is definitely set forth by the clalms.

In the drawings: Figure 1 is a diagrammatic view showing the manner of hand manipulation of the invention in moistening or tempering the channel and between substance of an insole after the upper and insolehave been assembled on a last; Fig. 2. is a sectional view of the nozzle end of the implement showing the association of parts constituting the invention and their relation while treating the channel and between substance of an insole; and Fig. 3 is a side elevation showing the nozzle end of the implement provided with a moisture distributing means, some of the parts being broken away.

As indicated inFig. 1, the lasted shoes, the insoles of which are to be tempered, may be conveniently supported upon a rack with the insoles uppermost, in which position the tempering operation may be conveniently performed, though, obviously, this is not an essential as the lasted shoe may be otherwise supported or indeed be held in the hand.

The rack. if used, may be of any usual or preferred type, that shown in part consisting of a ledge 1, from which project the arms 2 separated a distance to receive between them and support the lasted shoe 3 with the insole uppermost.

A suitable tank l: may be provided for holding the desired tempering liquid, which may be water, if preferred. Connected to the tank t is a flexible tube 5 by which the liquid therein may be directed to the tubular stem 6, preferably of metal, and carrying the nozzle 7, Fig. 2, to which it may conveniently be secured by suitable means, such as the screw thread connection 8. The tubular stem 6 is shown bent at 9, Fig. 1, so that the nozzle 7 is at an angle thereto, and while this relation of parts is conveniently adopted for the application of the tempering liquid when the lasted shoe is supported in the manner described, it is not material to the actual invention.

The nozzle 7 has its liquid discharging end portion preferably of conical form as at 10, Fig. 2, so that the discharging end of the nozzle will more conveniently travel in the channel of the shoe or behind the lip,

as indicated in Fig. 2. At its lower tapering portion thenozzle has a discharge opening 11 extending longitudinally there through, in which is longitudinally movable a valve stem 12 having at its upper portion H liquid passing in large quantities through the nozzle. ing device for the channels of insoles, because the ob ect is to supply only suflicient liquid to moisten or temper the between substance and any surplus is liable to run onto theupper of the'shoe and cause in jury. Such injury to the shoe upper is peculiarly objectionable in the manufacture of shoes, as will be readily understood, and one of the primary purposes of the present invention is to provide means such that insoles, after being assembled with the uppers may have their channels properly tempered Without danger of the objectionable injuries mentioned. By having the stem 12 fit the nozzle opening, as shown, so that only a small quantity of liquid can flow, even after the ball has been unseated, a convenient and reliablemeans is provided for tempering the between substance for the passage of the needle of the Welter without liability of injury to the shoe upper.

The upper portion of the interior of the nozzle 7 is provided with a chamber 15 in which is a ball 16 which, when the stem 12 is projected, is adapted to contact with the shouldered portion 17 at the bottom of the chamber 15 to more eiiectively seal the discharge passage 11 of the nozzle and prevent flow of liquid therethrough. In some instances it may be suflicient to have the ball seat itselfupon the shoulder 17 by means I of its own Weight, but, if desired, a suitable spiing 18 maybe interposed between the ball 16 and a suitable stop or shoulder at the top portion of the interior oi the nozzle, as indicated in Fig. 2, said shoulder in the present instance being formed at 19, Fig. 2.

From the construction described, it will be apparent that when the valve stem 12 is forced into the nozzle, it will lift and unseat the ball valve 16 and liquid will then be free to pass through the n'ozzlepassage ll'which is somewhat larger than the valve stem 12, and when the valve stem 12 is moved in the opposite direction, either by the Weight of the parts or such weight in addition to the spring 18, the ball valve 1% will be seated upon the valve seat or shoulder 17 and effectively seal the nozzle from the discharge of liquid.

In a prior application filed by Norman J.

This is desirable in a moisten-,

Nicholson, Serial No. 645,061, dated August 21, 1911, there was shown, described and claimed broadly an insole tempering device wherein the valve stem was movable flush with ihe end ol the nozzle when the implement was in operative position during the tempering process. in this position, the

tapering end of the nozzle itself in the Nicholson construction, or a shoe on the end of the nozzle, serve to turn the channel flap upward as the implement is moved about the insole. in the present invention, howe\er, the end of the valve stem is itself utilized for the purpose of turning up the channel flap, and as a means to this end the valve stem 12 is provided with a tapering end portion 20, Fig. 3, which is readily inserted between the flap 21 and the channel 22, and in order to maintain the end of the valve stem in position to perform this turn ing up function of the channel lip, the valve stem is provided with a limiting or other means to pievent its longitudinal movement into the nozzle 7 beyond the desired point.

In the construction shown, the stop consists of a pin 23 passed transversely through the valve stem 12 below the end of the nozzle, the construction being such that while the valve stem may be moved longitudinally into the nozzle to thereby unseat the ball valve and permit passage of the tempering liquid, the stop 23 will maintain the valve stem sutficiently projected beyond the end of the nozzle to enable it to guide the implement in the channel 22 of the insole and to act upon the channel lip to turn it upward, all substantially as clearly indicated in Fig. 2.

From the construction described, it will be apparent to one skilled in the art that when the valve stem 12 which normally projects beyond the end of the nozzle is introduced into the channel 22 of an insole, the pressure upon the end of the valve stem will cause said stem and nozzle to move relatively in a longitudinal direction to thereby unseat the ball valve 16, whereupon liquid will flow from the end of the nozzle into the channel of the insole and, by traveling the implement along the channel, a uniform and proper tempering of the channel and between sub- V stance will be effected. lVhcn the tempering operation has been completed and the operative lifts the implement from operative position, the weight of the valve stem and ball valve or of the tension of the spring 18 '3 will at once seat the valve and seal the nozzle from the discharge of the ten'ipering liquid, so that as the implement is removed from the shoe, all liability of wetting either the sole or the upper of the shoe other than at the parts desired is entirely eliminated. As the implement travels around the channel of the insole, the stop 23, by limiting the inward movement of the valve stem, holds the tapered end of the valve stem sullicicntly projected from the insole to act upon the channel lip and turn it up or elevate it as the implement is progressed along the channel of the insole.

It may sometimes be desirable to provide some kind of a liquid distributing means, which in connection with the nozzle will cause an even distribution of the liquid over the channel of the insole as the implement moves about the insole along said channel. This distributing means may be of various kinds, such as felt, sponge, bristles, or the like, but in the present form of the invention, as indicated in Fig. 3, it is indicated as a piece of felt 24 which is formed as a cap to fit over the end of the plunger and nozzle and to be held in place by suitable retaining means such, for instance, as the interiorly screw threaded washer 25 which may be screw threaded to the nozzle at 26, the construction being such that when the edge portions of the cap 24 are placed about the tapering end of the nozzle, the tapering portion 27 of the washer 25 will clamp the edge portions 28 of the felt in position to hold the cap. Obviously, the distributing means, such as the felt cap 24: may be variously formed and may be secured to the nozzle in various ways, the essential in this respect being simply that the distributing means be such as to act upon the liquid passing from the nozzle to cause its distribution more evenly over the surface of the channel ofthe insole. When the distributing means is in the form of the cap 24, the end of the valve stem 12 need not necessarily be of tapering form, but may be more rounded in order to cause less frictional injury to the cap as it is moved over the surface of the channel of the insole.

The details of the construction herein described as one form of the invention are found to be convenient and well adapted to the purpose, but it is to be understood that the invention is not restricted thereto and that modifications of these details may be made within the true scope of the invention as defined by the claims. It will also be apparent that while the device has been described as having special adaptation to the tempering of the channel and between substance of an insole, it may be used elsewhere and for tempering other portions of a shoe, if desired.

What is claimed is:

1. In a shoe sole tempering device, the combination of a suitable source of liquid supply, a nozzle having a tubular connection with said supply and a passageway for liquid, a ball valve contained within said nozzle to normally prevent the passage of liquid therethrough, a stem extending longitudinally through the nozzle for controlling said valve and having a channel lip turning portion projecting beyond the end of the nozzle, and means to insure the maintenance of the lip turning portion of the stem projecting beyond the end of the nozzle during the tempering operation.

2. A combined channel opener and moistener comprising an elongated casing having a tapered portion at one end provided with an end wall, said casing being provided with a liquid retaining chamber, a small outlet port for said chamber being formed in said end wall, an internal valve normally closing said port and provlded with a pm 1 projecting through said port and permanently beyond said end wall, and means for yieldingly holding said valve in closed position.

3. A combined channel opener and moistener comprising an elongated casing having a tapered portion at one end provided with an end wall, said casing being provided with a liquid retaining chamber, a small outlet port for said chamber being formed in said end wall, an internal valve normally closing said port and providedwith a pin projecting through said port and permanently beyond said end wall, and a spring within said chamber normally holding said valve in closed position.

4:. A shoe sole tempering device, comprising a liquid conduit having a nozzle for the passage of a liquid, a valve for controlling the How of liquid through said nozzle, a stem extending longitudinally through the nozzle for controlling said valve and having a channel lip turning portion projecting beyond the end of the nozzle, and means for insuring the maintenance of the lip turning portion of the stem in lip turning position as the nozzle is moved along the channel of the shoe.

5. In a shoe sole tempering device, the combination of a source of liquid supply, a nozzle, a tubular connection between the liquid supply and said nozzle, a stem extending longitudinally of and beyond the end of the nozzle, a valve controlling the flow of liquid through the nozzle and movable by said stem when said stem is moved longitudinally to permit the flow of liquid through the nozzle, said stem having a lip turning portion, and means for insuring the maintenance of the lip turning portion in lip turning position as the implement is moved over the shoe sole.

6. In a shoe sole tempering device, the combination of a source of liquid supply, a nozzle, a tubular connection between the liquid supply and said nozzle, a stem extending with a loose guiding fit longitudinally of and beyond the end of the nozzle, a valve controlling the flow of liquid through the nozzle and movable by said stem when said stem is moved longitudinally to permit the flow of liquid through the nozzle, said stem having a tapering end portion to engage the channel lip of an insole as the device is moved along the channel thereof to turn said lip, and a'stop to insure the maintenance of the tapering portion of the stem in lip turning position.

7. In a shoe sole tempering device, the combination of a source of liquid supply, a nozzle, a tubular connection between the liquid supply and said nozzle, a stem extending longitudinally of and beyond the end of the nozzle, a valve controlling the flow of liquid through the nozzle and movable by said stem,When said stem is moved longitudinally to permit flow of liquid through the nozzle, said stein having a tapering end portion to engage the channel lip of an insloe to turn said lip as the device is moved along the channel thereof, and

means to insure the maintenance of the ta' Copies of this patent may be obtained for pered lip engaging portion of the stem projected beyond the end of the nozzle during the tempering operation.

8. In a device of the character described, the combination of a nozzle, a source of liquid supply connected to said nozzle, a valve for controlling the flow of liquid through said nozzle, means including a stem fitting the nozzle with a guiding fit to prevent free flow of liquid therethrough, and liquid distributing means movable with the nozzle to distribute the liquid flowing from the nozzle, said stein adapted to be forced inwardly for unseating said valve to permit only limited flow of liquid through the nozzle.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

NICHOLAS G. BOHR.

Witnesses FRANK'M. Bonn, Gnonen P. GREGORY.

five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

